L4985B

PFC STMicroelectronics L4985B Overview

The L4985B from STMicroelectronics is a robust Continuous Conduction Mode (CCM) Power Factor Correction (PFC) controller. This controller is specifically designed to enhance the efficiency of AC to DC power supplies. With the integration of a high voltage startup circuit and a range of protections including over-voltage, under-voltage, and feedback disconnection, the L4985B ensures reliable and stable operation in various electrical environments. Its main advantage lies in its ability to provide consistent power factor correction in applications requiring high efficiency and reliability, making it a critical component in power management solutions.

L4985B Features

• High voltage startup circuit for quick initialization
• Continuous Conduction Mode (CCM) for efficient power conversion
• Advanced protections: over-voltage, under-voltage, and feedback disconnection
• Designed for AC to DC power supplies
• Improves overall system efficiency and reliability

L4985B Applications

• Industrial Power Supplies: Enhances efficiency and reliability in demanding industrial environments through stable power factor correction.
• Consumer Electronics: Applied in devices requiring efficient power usage and stability to prolong product life and reduce energy costs.
• Telecommunications Equipment: Critical for ensuring stable and reliable operation in communication infrastructure, contributing to reduced operational disruptions.
• Server Power Supplies: Vital in server farms where efficient power management and high reliability are required to maintain 24/7 operations.
• LED Lighting Systems: Utilized to improve the power factor of LED drivers, enhancing the efficiency and performance of lighting systems.